# afivds(a) Towns A and B in the figure below are 80.0 km apart. A couplenges to drive from towleave simultaneously and drive for 2.15 h in the directions shown. ca·'aving from Towwhat is the speed (in km/h) of car 2 (leaving from Town B)?10.0 go.okm/h(b) What If? If the couple departing from town B are delayed by a flat tire, how much later (in hours)reach the lake at the same time as the couple from town A? Assume that the speed limit on the roathe couple obeys the speed limit.hourSO Type here to searchZZZ2ハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハに1 1-1 1 1-1ハハハハハ八八八八1-1-1ハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハハesc4684.

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Towns A and B in the figure below are 80.0 km apart. A couple arranges to drive from town A and meet a couple driving from town B at the lake, L. The two couples leave simultaneously and drive for 2.15 h in the directions shown. Car 1 (leaving from Town A) has a speed of 99.0 km/h. If the cars arrive simultaneously at the lake, what is the speed (in km/h) of car 2 (leaving from Town B)?

What If? If the couple departing from town B are delayed by a flat tire, how much later (in hours) can they leave town B after the first couple leaves town A and still reach the lake at the same time as the couple from town A? Assume that the speed limit on the road taken by the couple from town B is 88.5 km/h (55 mph) and that the couple obeys the speed limit.

*Three sections of a map are shown. Two of the sections represent towns A and B and the third section is a lake. Town A appears to the left of town B and the lake appears above town B. Between Towns A and B is a dashed line labeled 80.0 km. Extending from Town A upwards and to the right and ending at the lake is a line labeled car 1. Extending from Town B upwards, slightly to the right and ending at the lake is a line labeled car 2.*

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Step 1

Given,

Driving Time, t=2.15h

Car1 speed, V1=99.0 km/h

Distance between the car, x=80.0 km

Step 2

The distance between A and L is calculated by multiplying velocity and time of car1.

Step 3

Using the cosine rule, distance between B ...

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